Výsledky vyhledávání - "Gisela Winckler"

Akademický článek

Long‐Term Variability in Pliocene North Pacific Ocean Export Production and Its Implications for Ocean Circulation in a Warmer World

Autor: Jordan T. Abell, Gisela Winckler

Publikováno v: AGU Advances, Vol 4, Iss 4, Pp n/a-n/a (2023)

Abstract Unlike in the high‐latitude North Atlantic, no deep water is formed in the modern subarctic North Pacific. It has previously been suggested that during climate states different from today, this dichotomy did not endure, and the formation o

Externí odkaz: https://doaj.org/article/5a4ab41464464641bdd1a5f344f7cb2b

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Akademický článek

Pleistocene drivers of Northwest African hydroclimate and vegetation

Autor: Nicholas A. O’Mara, Charlotte Skonieczny, David McGee, Gisela Winckler, Aloys J.-M. Bory, Louisa I. Bradtmiller, Bruno Malaizé, Pratigya J. Polissar

Publikováno v: Nature Communications, Vol 13, Iss 1, Pp 1-11 (2022)

Plant-wax isotope and dust flux records reveal that the long-term variability of the Northwest African monsoon is controlled by tropical solar radiation gradients. Grasslands expand into the Sahara during strong monsoons, but the ultimate composition

Externí odkaz: https://doaj.org/article/d0cf6724ce1d444e96559e27c608bddc

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Akademický článek

Helium in diamonds unravels over a billion years of craton metasomatism

Autor: Yaakov Weiss, Yael Kiro, Cornelia Class, Gisela Winckler, Jeff W. Harris, Steven L. Goldstein

Publikováno v: Nature Communications, Vol 12, Iss 1, Pp 1-11 (2021)

Diamonds encapsulate the deep Earth fluids that form them, providing windows to deep mantle processes. This study constrains their ages, based on uranium-thorium-to-helium radioactive decay in the fluids and helium diffusivity in diamond, and relates

Externí odkaz: https://doaj.org/article/75ec0c4cafd64ae7be4d3e8d2901062a

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Akademický článek

A circumpolar dust conveyor in the glacial Southern Ocean

Autor: Torben Struve, Katharina Pahnke, Frank Lamy, Marc Wengler, Philipp Böning, Gisela Winckler

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-11 (2020)

Dust deposition brings iron that fuels ocean productivity, a connection impacting climate over geological time. Here the authors use sediment cores to show that in contrast to dynamics today, during the last glacial maximum westerly winds shuttled du

Externí odkaz: https://doaj.org/article/8e2257bb5c034137883580eb1fb94839

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Akademický článek

A wind-albedo-wind feedback driven by landscape evolution

Autor: Jordan T. Abell, Alex Pullen, Zachary J. Lebo, Paul Kapp, Lucas Gloege, Andrew R. Metcalf, Junsheng Nie, Gisela Winckler

Publikováno v: Nature Communications, Vol 11, Iss 1, Pp 1-9 (2020)

Wind changes the surface of the Earth, but the surface characteristics of the planet also impact the winds above it. Here, the authors propose a feedback process in which wind erosion in the western Gobi Desert alters the thermal properties of the su

Externí odkaz: https://doaj.org/article/f9a52dcfd5994d1e9d707d98c7ed1612

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Akademický článek

East Greenland ice core dust record reveals timing of Greenland ice sheet advance and retreat

Autor: Marius Folden Simonsen, Giovanni Baccolo, Thomas Blunier, Alejandra Borunda, Barbara Delmonte, Robert Frei, Steven Goldstein, Aslak Grinsted, Helle Astrid Kjær, Todd Sowers, Anders Svensson, Bo Vinther, Diana Vladimirova, Gisela Winckler, Mai Winstrup, Paul Vallelonga

Publikováno v: Nature Communications, Vol 10, Iss 1, Pp 1-8 (2019)

Accurate measurements of the past extent of the Greenland ice sheet are crucial to understand its response to changing climate conditions. Here, the authors present a dust record from an ice core from the east coast of Greenland to provide detailed t

Externí odkaz: https://doaj.org/article/9a64d8aeae054433b21ee9e09e695cb4

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